SyntaxFix

[javascript] How to filter an array/object by checking multiple values

You can use .filter() method of the Array object:

var filtered = workItems.filter(function(element) {
   // Create an array using `.split()` method
   var cats = element.category.split(' ');

   // Filter the returned array based on specified filters
   // If the length of the returned filtered array is equal to
   // length of the filters array the element should be returned  
   return cats.filter(function(cat) {
       return filtersArray.indexOf(cat) > -1;
   }).length === filtersArray.length;
});

http://jsfiddle.net/6RBnB/

Some old browsers like IE8 doesn't support .filter() method of the Array object, if you are using jQuery you can use .filter() method of jQuery object.

jQuery version:

var filtered = $(workItems).filter(function(i, element) {
   var cats = element.category.split(' ');

    return $(cats).filter(function(_, cat) {
       return $.inArray(cat, filtersArray) > -1;
    }).length === filtersArray.length;
});

Examples related to javascript

• need to add a class to an element • How to make a variable accessible outside a function? • Hide Signs that Meteor.js was Used • How to create a showdown.js markdown extension • Please help me convert this script to a simple image slider • Highlight Anchor Links when user manually scrolls? • Summing radio input values • How to execute an action before close metro app WinJS • javascript, for loop defines a dynamic variable name • Getting all files in directory with ajax

Examples related to jquery

• How to make a variable accessible outside a function? • Jquery assiging class to th in a table • Please help me convert this script to a simple image slider • Highlight Anchor Links when user manually scrolls? • Getting all files in directory with ajax • Bootstrap 4 multiselect dropdown • Cross-Origin Read Blocking (CORB) • bootstrap 4 file input doesn't show the file name • Jquery AJAX: No 'Access-Control-Allow-Origin' header is present on the requested resource • how to remove json object key and value.?

Examples related to arrays

• PHP array value passes to next row • Use NSInteger as array index • How do I show a message in the foreach loop? • Objects are not valid as a React child. If you meant to render a collection of children, use an array instead • Iterating over arrays in Python 3 • Best way to "push" into C# array • Sort Array of object by object field in Angular 6 • Checking for duplicate strings in JavaScript array • what does numpy ndarray shape do? • How to round a numpy array?